7-a=5+4a

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Solution for 7-a=5+4a equation:


Simplifying
7 + -1a = 5 + 4a

Solving
7 + -1a = 5 + 4a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-4a' to each side of the equation.
7 + -1a + -4a = 5 + 4a + -4a

Combine like terms: -1a + -4a = -5a
7 + -5a = 5 + 4a + -4a

Combine like terms: 4a + -4a = 0
7 + -5a = 5 + 0
7 + -5a = 5

Add '-7' to each side of the equation.
7 + -7 + -5a = 5 + -7

Combine like terms: 7 + -7 = 0
0 + -5a = 5 + -7
-5a = 5 + -7

Combine like terms: 5 + -7 = -2
-5a = -2

Divide each side by '-5'.
a = 0.4

Simplifying
a = 0.4

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